They are real people, and that's why I can't understand why these anime characters are needed. People obviously following them because "they" look like cute anime boys.
As for the charts, well, they're trending for a couple of hours and they're leaving the chart.
I mean, if people actually like them, why are they only streaming their songs between 10PM and 2AM?😅
It's probably trying to hop on to the vtuber trend in Korea.
And also, they are 2nd gen idols who didn't make it back then, and by doing this it gives them a platform to interact with fans in a different way
Competition is so huge now